Montague PR, Dayan P, Sejnowski TJ. (1996). A framework for mesencephalic dopamine systems based on predictive Hebbian learning. The Journal of neuroscience : the official journal of the Society for Neuroscience. 16 [PubMed]
Porr B, Wörgötter F. (2006). Strongly improved stability and faster convergence of temporal sequence learning by using input correlations only. Neural computation. 18 [PubMed]